MEAN WELL DRC-180A DIN Rail Power Supply 179.4 W 2 Outputs 13.8 VDC 9 A

Security and access control installers rely on the MEAN WELL DRC-180A when a DIN rail mountable power supply must keep running during a mains failure. This 179.4 W unit delivers a regulated 13.8 VDC output at up to 9 A for the main load, plus a second 13.8 VDC output rated at 4 A for battery charging. The built-in UPS function monitors AC status and battery condition via relay contacts, making it suitable for systems that require uninterrupted DC power.

Key specifications

• Total power: 179.4 W
• Output 1: 13.8 VDC, 9 A, adjustable 12–15 V
• Output 2: 13.8 VDC, 4 A, fixed for battery charging
• Input voltage: 90–264 VAC or 127–370 VDC
• Efficiency: 89%
• Mounting: DIN rail TS-35/7.5 or TS-35/15
• Operating temperature: -30 to +70 °C
• Protections: short circuit, overload, over voltage, battery low disconnect, battery reverse polarity (by fuse)
• Ripple and noise: 150 mVp-p on both outputs
• Cooling: free air convection
• Isolation: I/P-O/P 3 kVAC, I/P-FG 2 kVAC, O/P-FG 0.5 kVAC
• MTBF: >200,000 hours (MIL-HDBK-217F, 25 °C)

Why choose it

The DRC-180A combines a power supply and battery charger in one compact DIN rail module. Its wide AC input range and high efficiency reduce heat and energy costs, while the relay contacts simplify integration with alarm panels or building management systems.

Ideal use cases

• Access control and security systems
• Fire alarm and emergency lighting panels
• Industrial automation with battery backup
• Telecom and datacom equipment

Good to know

The second output is intended for charging a lead-acid battery and includes low-battery disconnect to protect the battery from deep discharge. The unit operates from -30 °C, making it suitable for unheated enclosures.